Overview

Nixieduino is a nixie clock, based on Arduino mega board. Original Arduino schematic was modified, but it still has possibilities to program device through USB with Arduino IDE. It also has all Arduino LED indicators, located inside case.

To extend capabilities of the devise, standard Arduino shield connector also present on board. Small shields fit perfectly inside the case, but room for shields is limited, so check inner dimensions if you want to add a shield in your clock.

Warning! There are high-voltage lines on board, do not touch board or plug shields when board is powered on.

Clock case has two parts milled on CNC from solid piece of wood. To protect wood surface they finished with hard wax oil. Clock case has also aluminum back plate, covered with black paint.

For controlling the clock there are push-button rotary switch and additional button on the back plate. For setting the clock only rotary encoder is used, and additional button switches display between hh:mm and MM:dd, so button can be reprogrammed for user purposes without interfering main clock function.

Program time correction can help to increase accuracy of the clock.

Nixieduino uses supercapacitors for extending operating time without external power supply. In that case there is no indication, but time counting doesn’t stop. Supercapacitor stores enough power for several days of clock ticking.

Nixieduino can be produced with IN-8-2 or IN-14 tubes. Main difference between these tubes is in form of “5” digit.